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What’s the most energy-efficient hot water system?

If you’re replacing an old hot water system, it can be tempting to simply get the same type you had before. But these days there are all sorts of different systems you can choose from, each with different running costs. It’s important to consider your options, as chances are you might be able to find a more efficient alternative.

The graph below shows the annual running costs for the most common types of hot water systems.

 

graph showing running costs of hot water systems
Data sourced from Sustainability Victoria Hot Water Running Costs and may differ slightly depending on your state

Both solar hot water and hot water heat pumps are the most affordable systems to run.

Want to learn more about heat pumps? Read our complete guide to choosing your perfect hot water heat pump. 

The Complete Guide to Choosing your Perfect Hot Water Heat Pump

Download our brand-new guide to find out all the things you need to know before buying a heat pump.